To find the optimum classroom glass type and area, dbHMS performed a study using different window areas and glass types factoring power saved through daylighting against added cooling and heating loads. The results found the “sweet spot” for the best views and learning environment with the lowest energy costs.

dbHMS provided energy modeling on several schemes which combined with a simple life cycle cost analysis, showed the Chicago Public School district that a geothermal heat pump system was not only more green, but supplemented with government tax credits, was more cost-effective than the VAV system they typically use. The district blessed the idea and asked dbHMS to prepare the grant applications. This is the first geothermal system that has been incorporated into the Chicago Public Schools.